When a close relative's bullet penetrated his eyebrows, Lin Yuan met a tragic end in the doomsday. When he opened his eyes again, he was reborn a month before the natural disaster struck. This time, he vowed to survive at all costs. He sold everything and built a steel fortress strong enough to withstand the apocalypse, hoarding supplies that could last for several years.
However, the mockery of fate ensued. He discovered that his sister Lin Wei, who had killed her brother for a box of cans, had also returned with cold memories. Resources, opportunities, safety points... Everything has become a bet for this brother and sister's brutal competition. Outside the fortress are zombies and natural disasters that devour everything; inside the fortress are blood relatives who are more deadly than monsters and understand each other's weaknesses better.
Suspicion spreads like poison ivy and traps are laid in the shadows. They took turns performing dramas of rescue and betrayal, testing the abyss of humanity in each other's hearts. Until Lin Yuan discovered that what Lin Wei was frantically snatching was not just survival resources, but an astonishing secret that could overturn the entire doomsday pattern - about the origin of this disaster and the truth about their rebirth.
In this double abyss, they are each other's last relatives, and they are also mortal enemies who are destined to have only one survive. When the final truth is revealed, they must make a choice: repeat the fate of killing each other, or find the last glimmer of light for the dim future of mankind at the end of the world?
